com.liferay.journal.web.internal.upload.ImageJournalUploadFileEntryHandler.java Source code

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Here is the source code for com.liferay.journal.web.internal.upload.ImageJournalUploadFileEntryHandler.java

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/**
 * Copyright (c) 2000-present Liferay, Inc. All rights reserved.
 *
 * This library is free software; you can redistribute it and/or modify it under
 * the terms of the GNU Lesser General Public License as published by the Free
 * Software Foundation; either version 2.1 of the License, or (at your option)
 * any later version.
 *
 * This library is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
 * FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
 * details.
 */

package com.liferay.journal.web.internal.upload;

import com.liferay.document.library.kernel.util.DLValidator;
import com.liferay.journal.configuration.JournalFileUploadsConfiguration;
import com.liferay.journal.service.permission.JournalPermission;
import com.liferay.petra.string.StringPool;
import com.liferay.portal.configuration.metatype.bnd.util.ConfigurableUtil;
import com.liferay.portal.kernel.exception.ImageTypeException;
import com.liferay.portal.kernel.exception.PortalException;
import com.liferay.portal.kernel.log.Log;
import com.liferay.portal.kernel.log.LogFactoryUtil;
import com.liferay.portal.kernel.repository.model.FileEntry;
import com.liferay.portal.kernel.security.auth.PrincipalException;
import com.liferay.portal.kernel.security.permission.ActionKeys;
import com.liferay.portal.kernel.security.permission.PermissionChecker;
import com.liferay.portal.kernel.security.permission.ResourcePermissionCheckerUtil;
import com.liferay.portal.kernel.theme.ThemeDisplay;
import com.liferay.portal.kernel.upload.UploadPortletRequest;
import com.liferay.portal.kernel.util.FileUtil;
import com.liferay.portal.kernel.util.TempFileEntryUtil;
import com.liferay.portal.kernel.util.WebKeys;
import com.liferay.upload.UniqueFileNameProvider;
import com.liferay.upload.UploadFileEntryHandler;

import java.io.IOException;
import java.io.InputStream;

import java.util.Map;

import org.osgi.service.component.annotations.Activate;
import org.osgi.service.component.annotations.Component;
import org.osgi.service.component.annotations.Modified;
import org.osgi.service.component.annotations.Reference;

/**
 * @author Eduardo Garcia
 * @author Alejandro Tardn
 */
@Component(configurationPid = "com.liferay.journal.configuration.JournalFileUploadsConfiguration", immediate = true, service = ImageJournalUploadFileEntryHandler.class)
public class ImageJournalUploadFileEntryHandler implements UploadFileEntryHandler {

    @Override
    public FileEntry upload(UploadPortletRequest uploadPortletRequest) throws IOException, PortalException {

        ThemeDisplay themeDisplay = (ThemeDisplay) uploadPortletRequest.getAttribute(WebKeys.THEME_DISPLAY);

        _checkPermission(themeDisplay.getScopeGroupId(), themeDisplay.getPermissionChecker());

        String fileName = uploadPortletRequest.getFileName(_PARAMETER_NAME);
        long size = uploadPortletRequest.getSize(_PARAMETER_NAME);

        _validateFile(fileName, size);

        String contentType = uploadPortletRequest.getContentType(_PARAMETER_NAME);

        try (InputStream inputStream = uploadPortletRequest.getFileAsStream(_PARAMETER_NAME)) {

            String uniqueFileName = _uniqueFileNameProvider.provide(fileName,
                    curFileName -> _exists(themeDisplay, curFileName));

            return TempFileEntryUtil.addTempFileEntry(themeDisplay.getScopeGroupId(), themeDisplay.getUserId(),
                    _TEMP_FOLDER_NAME, uniqueFileName, inputStream, contentType);
        }
    }

    @Activate
    @Modified
    protected void activate(Map<String, Object> properties) {
        _journalFileUploadsConfiguration = ConfigurableUtil
                .createConfigurable(JournalFileUploadsConfiguration.class, properties);
    }

    private void _checkPermission(long groupId, PermissionChecker permissionChecker) throws PortalException {

        boolean containsResourcePermission = ResourcePermissionCheckerUtil.containsResourcePermission(
                permissionChecker, JournalPermission.RESOURCE_NAME, groupId, ActionKeys.ADD_ARTICLE);

        if (!containsResourcePermission) {
            throw new PrincipalException.MustHavePermission(permissionChecker, JournalPermission.RESOURCE_NAME,
                    groupId, ActionKeys.ADD_ARTICLE);
        }
    }

    private boolean _exists(ThemeDisplay themeDisplay, String curFileName) {
        try {
            if (TempFileEntryUtil.getTempFileEntry(themeDisplay.getScopeGroupId(), themeDisplay.getUserId(),
                    _TEMP_FOLDER_NAME, curFileName) != null) {

                return true;
            }

            return false;
        } catch (PortalException pe) {
            if (_log.isDebugEnabled()) {
                _log.debug(pe, pe);
            }

            return false;
        }
    }

    private void _validateFile(String fileName, long size) throws PortalException {

        _dlValidator.validateFileSize(fileName, size);

        String extension = FileUtil.getExtension(fileName);

        for (String imageExtension : _journalFileUploadsConfiguration.imageExtensions()) {

            if (StringPool.STAR.equals(imageExtension) || imageExtension.equals(StringPool.PERIOD + extension)) {

                return;
            }
        }

        throw new ImageTypeException("Invalid image type for file name " + fileName);
    }

    private static final String _PARAMETER_NAME = "imageSelectorFileName";

    private static final String _TEMP_FOLDER_NAME = ImageJournalUploadFileEntryHandler.class.getName();

    private static final Log _log = LogFactoryUtil.getLog(ImageJournalUploadFileEntryHandler.class);

    @Reference
    private DLValidator _dlValidator;

    private JournalFileUploadsConfiguration _journalFileUploadsConfiguration;

    @Reference
    private UniqueFileNameProvider _uniqueFileNameProvider;

}